Files
mev-beta/orig/pkg/uniswap/constants.go
Administrator 803de231ba feat: create v2-prep branch with comprehensive planning
Restructured project for V2 refactor:

**Structure Changes:**
- Moved all V1 code to orig/ folder (preserved with git mv)
- Created docs/planning/ directory
- Added orig/README_V1.md explaining V1 preservation

**Planning Documents:**
- 00_V2_MASTER_PLAN.md: Complete architecture overview
  - Executive summary of critical V1 issues
  - High-level component architecture diagrams
  - 5-phase implementation roadmap
  - Success metrics and risk mitigation

- 07_TASK_BREAKDOWN.md: Atomic task breakdown
  - 99+ hours of detailed tasks
  - Every task < 2 hours (atomic)
  - Clear dependencies and success criteria
  - Organized by implementation phase

**V2 Key Improvements:**
- Per-exchange parsers (factory pattern)
- Multi-layer strict validation
- Multi-index pool cache
- Background validation pipeline
- Comprehensive observability

**Critical Issues Addressed:**
- Zero address tokens (strict validation + cache enrichment)
- Parsing accuracy (protocol-specific parsers)
- No audit trail (background validation channel)
- Inefficient lookups (multi-index cache)
- Stats disconnection (event-driven metrics)

Next Steps:
1. Review planning documents
2. Begin Phase 1: Foundation (P1-001 through P1-010)
3. Implement parsers in Phase 2
4. Build cache system in Phase 3
5. Add validation pipeline in Phase 4
6. Migrate and test in Phase 5

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-10 10:14:26 +01:00

73 lines
1.6 KiB
Go

// Package uniswap provides mathematical functions for Uniswap V3 calculations.
package uniswap
import (
"math"
"math/big"
"sync"
)
var (
// Global cached constants initialized once to avoid recomputing them
q96 *big.Int
q192 *big.Int
lnBase float64 // ln(1.0001)
invLnBase float64 // 1 / ln(1.0001)
q96Float *big.Float
q192Float *big.Float
once sync.Once
)
// InitConstants initializes all global cached constants
func InitConstants() {
once.Do(func() {
q96 = new(big.Int).Exp(big.NewInt(2), big.NewInt(96), nil)
q192 = new(big.Int).Exp(big.NewInt(2), big.NewInt(192), nil)
lnBase = math.Log(1.0001)
invLnBase = 1.0 / lnBase
q96Float = new(big.Float).SetPrec(256).SetInt(q96)
q192Float = new(big.Float).SetPrec(256).SetInt(q192)
})
}
// initConstants initializes all global cached constants (alias for internal use)
func initConstants() {
InitConstants()
}
// GetQ96 returns the cached value of 2^96
func GetQ96() *big.Int {
initConstants()
return q96
}
// GetQ192 returns the cached value of 2^192
func GetQ192() *big.Int {
initConstants()
return q192
}
// GetLnBase returns the cached value of ln(1.0001)
func GetLnBase() float64 {
initConstants()
return lnBase
}
// GetInvLnBase returns the cached value of 1/ln(1.0001)
func GetInvLnBase() float64 {
initConstants()
return invLnBase
}
// GetQ96Float returns the cached value of 2^96 as big.Float
func GetQ96Float() *big.Float {
initConstants()
return q96Float
}
// GetQ192Float returns the cached value of 2^192 as big.Float
func GetQ192Float() *big.Float {
initConstants()
return q192Float
}